Display device



May 30, 1933. B. ROSENTHAL DISPLAY DEVICE Fil ed Dec. 3, 1931 2 Sheets-Sheet 1 A .INVENTOR- Benjamin Poumal I ATTORNEY- B. ROSENTHAL DI SPLAY DEVICE May 30, 1933.

Filed Dec. 3, 1931 2 Sheets-Sheet 2 INVENTOR- ATTORNEY- Patented May 39, 1933 Unites erases PATENT oFFicE BENJAMIN ROSENTHAL, F NEVJ YORK, N. Y., ASSIG-NOR TO ROBERT STUART, OF

NEW YORK, N. Y.

DISPLAY DEVICE Application filed December 3, 1931. Serial No. 578,669.

This invention relates to devices of the nature disclosed in my copending application Serial No. 559,655, filed August 27, 1931, and which are particularly applicable to advertising purposes, although obviously notrestricted thereto as will appear from the disclosure. V

The general object of the invention is to provide a novel collapsible display device 19 which will lie fiat between the folds of a letter or the like when the latter is closed and will stand upright relative to the plane'of the letter when the latter is opened. 1

More specifically, an object is to provide a device which is collapsible between the closed folds of a bent sheet and which will expand into upright position when the sheet is opened.

Further, an object is to provide a device collapsible between the closed folds of a sheet, with a connection from each fold of the sheet, to a side of the collapsible device whereby opening up the sheet will pull the sides of the device in opposite directions to expand the device.

Another object is to provide a device of semi-stiff material bent along at least four parallel lines to provide a collapsible structure having opposite sides joined to' opposite folds of a sheet and which will be moved into upright position and held therein by opening of the sheet. I

A further object is to provide a modified collapsible structure having more than two spaced upright portions when the device is in expanded position' i Still another object is to interlock the spaced free ends of a formed collapsible cardboard device with eachother and with oppo site folds of a sheet.

Other objects and advantages will be apparent from the following description and from the drawings, in which: i

Fig. 1 is aper'spective view of a displaydevice when in expanded position, also showing the folder to which it is attached, 7

Fig. 2 is a fragmental view in perspective of a section taken on theplane indicated by the line 22 of Fig. 1, i V

Fig. 3 is a fragment-a1 plan view taken on the plane indicated by the line 33 of Fig. 1, i i Fig. 4 is a development of the blank from V which the device is constructed, Fig. 5 is a fragmental sectional view, showing the device in intermediate, folded posi- 5 ion, 7 r c Fig. 6 is a perspective view of another device in expanded position, again also showing the folder to which it is attached,

Fig. 7 is a fragmental sectional View of the second device, and

Fig. 8 is a fragmental plan view taken on the plane indicated by the line 8-8 ofFig; 6. Referring to the drawings in detail, the embodiment of the invention represented by Figures 1 to 5 comprises a display device 10', made of any desired suitable material, preferably of semi-flexible paper.

.The device has two comparatively long sides, 11 and 12, formed by folding the blank (Fig. 4) along the line 13. Side 11 is bent at the free end along lines 14 and 15, while side 12 is bent along line 16. These lines are parallel to each other. Side 11 is formed at the free'end with a tab 17, having a notch 18, while side 12 at the free end is formed with a tab 19,'having taperedsides. The tabs 17 and 19 are adapted to interlock when i the device is bent into final form'as shown in Figures 1 to 3 and 5. Tab 19 is bent up and received in notch 18 with the narrow inner end thereof along line 16 abutting the base of the notch and the tapered sidesoverlapping the portions of tab 17 at either side ofthe notch'while saidportions extend bevond'the free edge of side 12 at either side of line 16.

The side 11 is also cutout to forma tab 20, extending inwardly from line 14. The purpose of the tab 20 will be later' brought out.

The device is adapted to be attached to opposite leaves 21 and 22 of a sheet folded along line 23.

In assembling the device to the folded sheet, it is folded along line 18, the tabs17 and 19 are bent up and the side 11 is folded along line 14 to provide an. intermediate bent portion 25. The leaves 21 and 22 are out out at opposite sides of the line 23 to form an opening 26 (Fig. 3), through which the tabs 17 and 19 may be inserted. The opening is approximately of the same width as the width of tab 17. lVhen the tabs 17 and 19 are inserted through the opening 26, the free edge of side 12 and the ends of the portion abut the top of leaves 21 and 22 to limit the position of the collapsible structure with respect to the sheet. The tab 20, which is in the same plane as the portion 25, is hooked under an edge of the opening 26 to lie under the fold 21. Similarly, the outer portions of tab 17 project beneath the fold 22 and thus serve as a bottom abutment for the side 12 of the display device. After being placed in the position shown in Figures 1, 2,3 or 5, the tab 19 is located within the notch 18 beneath the tab 17 in overlapping relation therewith. At this stage of the assembly the sides 11 and 12 are interlocked at the bottom by means of the inter-engagement of tabs 17 and 19, while the tabs themselves and the display as a whole are locked to the folds 21 and 22 by engagement of the tab 20 and the outer portions of tab 17 with the folds 21 and 22 respectively.

In order to securely join the collapsible display device to the folded sheet a binder, such as a gummed tape strip 28, is fastened to the bottom of folds 21 and 22. The tape 28 extends to either side of the opening 26 and is also fastened to the bottoms of tabs 17, 19 and 20.

In this manner an assembly is built up of a pair of folds 21 and 22 ioined with a collapsible display device which may fold or hinge along parallel lines 13, 14, 15 and 16. It will be clear from Figure 5 that, when the folds 21 and 22 are moved towards a closed position, the sides 11 and 12 and the portions 25 and 19 approach each other to finally lie fiat when the folds 21 and 22 are in closed position. The display device when assembled to the folds 21 and 22, is in effect a four-sided structure the adjacent sides of which are freely hinged to each other to permit expansion or collapse of the structure with expansion or collapse of folds 21 and 22. Itis a requisite of the collapsible structure that the combined length of side 11 and portion 25, which form two adjacent sides of the quadrangular structure, be the same as the combined length of side 12 and tab 19, which form the other two adjacent sides of the quadrangle. Due to this fact, when the sheet is closed the sides 11 and 12 of the structure will lie flat between the folds 21 and 22.

Since folds 21 and 22 form rigid extensions of'the narrow sides of the quadrangular display device, it will be apparent that the op- 'eration ofclosing or'opening the folds 21 and 22 will automatically actuate the four sides of the display device and thus correspondingly close or open the display device.

When the folds are opened, the display device moves to an upright position and a picture or other advertising matter on the outer surface of sides 11 and 12 will be brought to the attention of the individual who opens the folds.

In Figs. 6 to 8 another device is illustrated, in which a double collapsible display is joined to adjacent leaves 21 and 22 of a sheet folder. This device includes a collapsible unit having two long sides and two short sides forming a quadrangular structure similar to the one shown in previous figures and already described. The long sides 30 form, as before, the display proper. The sheet folder has an opening 33 beneath an edge of which engages a tab 36 cut out from one of the long sides 30 and extending from the small side 31 of the quadrangular structure. The narrow side 31 at its ends abuts the top surface of leaf 21 adjacent to the line of fold of said sheet, the unit also comprising a portion extending centrally from said side 31 and part of which forms the other small side of the quadrangular structure. Said extension 35, together with thecentral portion of side 31, are located within the area confined by the edges of the opening 33. A slit 34 is formed through the extension 35 adjacent to said other small side, and a tab 35, formed at the free end of the other long side 30, is inserted through said opening 34 and bent up to engage the bottom surface of said extension. The device also includes another quadrangular structure having front and rear sides 39 and parallel to the front side 30 of the structure already described. A display may be placed on the front side 39 which, as shown in Figs. 6 and 7, may project above the upper side 37. The front side 30 of the rear structure has a tab 4.10m out therefrom, which extends through a slit formed through the front structure to interlock said side 30 with the rear side 40 of the front structure. The upper side 37 extends forwardly from the rear side 40 and is formed with a downward extension engaging the front side 39. A tab 38 is formed from the free end of the front side 39, to interlock with a notch formed at the free end edge 'of the extension 35, and is bent up to engage the bottom of said extension 35. The outer end portions'42 of said extension 35 engage the bottom of the sheet fold 22.

After the units are assembled to each other and to the folds 21' and 22', an adhesive tape 43 is fastened to the folds and to the bottoms of portions 32, 36, 38 and 42. When the folds are closed, the interlocked units will collapse and lie fiat therebetween. When the folds are closed,they carry with their movement the small sides of the collapsible units lying in the same planes therewith thereby expanding the units into open position.

The theory of operation of the device just described is that two completely collapsible quadrangular structures are joined to each other and to a folded sheet.

While the invention has been disclosed with respect to preferred embodiments it is to be understood that the principles of the invention are capable of application in different forms without departing from the spirit of the invention. I therefore wish to be limited only by the scope of the following claims:

1. The combination with a sheet folded to form a pair of leaves, of a collapsible display device comprising a pair of lower adj acent sides hinged directly to each other substantially along the fold line of said sheet and which are rigidly joined to different leaves of the sheet to move substantially rigidly therewith, and an upper display section extending integrally from and hinged to said sides, said device being adapted to be moved open into display position on opening of the sheet, with its display section extending upright.

2. The combination with a sheet folded to form a pair of leaves, of a collapsible nnilti-sided-display device the sides of which are hinged along lines parallel to the line of fold of the sheet and having a pair of adjacent sides formed with inter-engaging, overlapping portions and means for fastening said portions to opposite leaves of the sheet to hinge along the line of fold of the sheet and cause the display device to move into upright position when the sheet is opened.

3. The combination with a sheet folded to form a pair of leaves and having a hole cut in the leaves extending to opposite sides of the line of fold, of a collapsible display device having integral interlocked portions iiisertable through said hole, and engageable with the bottom of said leaves at opposite sides of the hole, and means for fastening said portions to the opposite leaves to move therewith upon opening or closing of the sheet whereby the display device is correspondingly opened or closed.

4. The combination with a sheet folded to form a pair of leaves adapted to open and close bookwise, of a display device having a display section and means for securing said section to opposite leaves of said sheet to be moved by the latter into upright display position when the leaves are opened and to lie flat between the leaves when the leaves are closed, said securing means including a section connected to the display section and hinged along a line substantially parallel to the line of fold of the sheet to provide an upper portion adapted to stand angularl'y to the sheet when opened and a lower portion consisting of tabs extending in opposite directions from said hinge line and substantially latter beyond the sides of said opening in the sheet and engaging the top of the sheet to cooperate with aforesaid tab, which engages the underside of the sheet, for preventing movement of the second section bodily in a direction angular to the plane of the sheet when open.

In testimony whereof 1 hereto afiix my signature.

BENJAMIN ROSENTHAL. 

